Consciousness is positively only known to us as a property of animal nature
 Arthur Schopenhauer, The World as Will and Representation (1819). copy citation

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Author Arthur Schopenhauer
Source The World as Will and Representation
Topic consciousness property
Date 1819
Language English
Reference
Note Translated by R. B. Haldane and J. Kemp
Weblink http://www.gutenberg.org/files/40097/40097-h/40097-h.html

Context

“But in order not merely to describe consciousness figuratively, but to know it thoroughly, we have first of all to find out what appears in the same way in every consciousness, and therefore, as the common and constant element, will also be the essential. Then we shall consider what distinguishes one consciousness from another, which accordingly will be the adventitious and secondary element. Consciousness is positively only known to us as a property of animal nature; therefore we must not, and indeed cannot, think of it otherwise than as animal consciousness, so that this expression is tautological. Now, that which in every animal consciousness, even the most imperfect and the weakest, is always present, nay, lies at its foundation, is an immediate sense of longing, and of the alternate satisfaction and non-satisfaction of it, in very different degrees.” source